Table 1.
Participant characteristics
| Entire sample | Range | Younger half | Older half | |
|---|---|---|---|---|
| n | 52 | 26 | 26 | |
| Age (years) | 39.04 (10.02) | 25–61 | 30.75 (4.02) | 47.32 (6.78) |
| n Female (%) | 27 (51.9%) | 10 (38.5%) | 17 (65.4%) | |
| n White/Caucasian (%) | 42 (80.8%) | 19 (73.1%) | 23 (88.5%) | |
| n Current medications reported | 1.5 (2.36) | 0–9 | 0.92 (2.33) | 2.08 (2.28) |
| PSQI | 2.4 (1.61) | 0–9 | 2.4 (1.47) | 2.35 (1.77) |
| AHI | 3.63 (3.97) | 0–19.53 | 2.61 (2.79) | 4.61 (4.69) |
| Total sleep time (min) | 402.04 (47.07) | 279–512.33 | 410.76 (55.77) | 393.33 (35.39) |
| WASO (min) | 33.03 (32.18) | 5–160.33 | 28.17 (33.02) | 37.90 (31.20) |
| aSWA (μV2 Hz) | 25.90 (13.05) | 1.5–56.51 | 29.42 (12.47) | 22.38 (12.88) |
| rSWA (μV2 Hz) | 0.81 (0.07) | 0.65–0.90 | 0.83 (0.06) | 0.78 (0.63) |
| Semi-quantitative whole brain metabolism (μmol−1100 mL−1 min−1) | 13.40 (1.77) | 10.05–17.42 | 13.83 (1.60) | 12.94 (1.86) |
| n = 47 | n = 24 | n = 23 | ||
| n Stage 1 epochs during uptake period | 1.03 (1.87) | 0–8 |
AHI, apnea–hypopnea index; aSWA, absolute slow wave activity; rSWA, relative slow wave activity; WASO, wake time after sleep onset; PSQI, Pittsburgh Sleep Quality Index. Unless specified otherwise, values represent means and standard deviations.